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"But when the market opened this morning, Activision Blizzard's stock collapsed while Starbucks' stock soared," the "Mad Money" host said. "How the heck is that even possible? Well, you see, it's all in the expectations."

When a company's earnings results are lower than Wall Street's expectations, its stock typically declines. When they are higher than what the Street expects, the company's stock tends to rally.

In Starbucks' case, most of its larger shareholders saw the growth rate cut as "a given," Cramer said. Smaller investors who weren't expecting the guidedown sold the stock on Thursday, but buyers who expected it bought into Starbucks on Friday morning, erasing its losses.

Activision Blizzard's management, on the other hand, made the mistake of talking about holiday sales competition on its post-earnings conference call, the "Mad Money" host said.

News of the company's expanding esports business and professional Overwatch league fell on deaf ears.

"What's ironic here is that I think that Activision Blizzard should be bought and bought aggressively, which is something we told members of the ActionAlertsPlus.com club many times today," the "Mad Money" host said. "But you know what? I would not chase the stock of Starbucks here unless we knew for sure that the guidance they gave, the new guidance, wasn't too optimistic."